. (III) You are given a vector in the xy plane that has a magnitude of 90.0 units and a y component of -65.0 units(a) What are the two possibilities for its x component?(b) Assuming the x component is known to be positive,specify the vector which, if you add it to the original one,would give a resultant vector that is 80.0 units long andpoints entirely in the -x  direction.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter1: Introduction And Vectors
Section: Chapter Questions
Problem 46P: Vector A has x and y components of 8.70 cm and 15.0 cm, respectively; vector B has x and y...
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. (III) You are given a vector in the xy plane that has a magnitude of 90.0 units and a y component of -65.0 units
(a) What are the two possibilities for its x component?
(b) Assuming the x component is known to be positive,
specify the vector which, if you add it to the original one,
would give a resultant vector that is 80.0 units long and
points entirely in the -x  direction.

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